5/8 x 3/16 Inch Neodymium Rare Earth Female Stud Pot/Cup Mounting Magnet N42 PN: MMS-D-A

• Dimensions:
      Diameter = 5/8" (0.625")
      Threaded Female Stud = #4-40 UNC 2B
      Height = 3/16" (0.188")
• Material: NdFeB, Grade N42
• Plating/Coating: Ni-Cu-Ni (Nickel)
• Magnetization Direction: Axial (Poles on Flat Ends)
• Weight: 0.268 oz. (7.59 g)
• Pull Force: 15.63 lbs
• Surface Field: N/A
• Brmax: 13,200 Gauss
• BHmax: 42 MGOe

The MMS-D style is a flat mounting magnet with a female threaded shaft permanently attached. If you need a magnet to attach to something threaded, this is what you need.